Finding out that asbestos is dangerous and limiting its use in building materials
A "smart material" is one having a molecular structure that responds in a particular and controlled way to influences upon it. These range from magnetically-changed materials, to "memory" molecules that return to their original form, to materials that generate an electric charge when pressed, twisted, or warped.
Semiconductors are unique materials; whose electrical conductivity can be changed deliberately, usually in a dynamic [reversible] fashion. They are used to make semiconductor devices, which led to the information Age of the late 20th century.
Gross raw materials are those in which the weight of the final products are less than the raw materials which were used in its production. Eg. - Copper ore, from which less amount of copper will be produced.
Many materials such as plastic melt and some materials burn such as wood
Materials.
In theory, No
Materials and designs.
wood changed to stones or rocks.
not at all
materials, cost,
Either more or less materials would be in the atmosphere.
ewan . d q alam :)))
helo moto, kala puda, mayada, kutar,
what are revolutionariesThings that changed the world that was man made even if made of nature materials.
Over time, houses have changed in many ways. Some ways that houses have changed are, the materials made to build them, how many stories they have, and how many rooms are within them.
Hi, this is Brad GiggleBottom and the thing that changed about castle was that wood changed to stone proper the reason was that it was not so easy attack